bson@rice-chex.ai.mit.edu (Jan Brittenson) (11/15/90)
In article <kbE7C1u00WBM83dksI@andrew.cmu.edu> dj1l+@andrew.cmu.edu (Demian A. Johnston) writes: > Subject: Re: Blinky, A CHIP-48 PacMan & Chipper, > A PC based CHIP-48 assembler I haven't received anything about the items mentioned in the subject. In fact, I haven't received anything on this newsgroup the last couple of days. So something is probably broken at my end. Could some kind soul mail me the address of an ftp site that carries them? (nic.funet.fi, like Demian mentioned, doesn't seem to.) Also, this makes me wonder whether my announcement of the 48-internals list a couple of weeks ago ended up in the bitbucket. It's still an informal list open for requests, for non HP (Corvallis) employees and contractors; send me your 48's serial #, date and place of purchase, your name and a working e-mail address, and I will add you to the list. The list's purpose is for a group of 48 owners to nonpublicly be able to discuss the software and hardware of their HP-48SX calculators, where similar activities if done in public would infringe upon HP's copyright. Finally, I have written a simple but fast sprite drawer in ML. The current version is stack-based for debugging purposes, but will become an integral part of a sprite animation system I'm working on and then inaccessible stackwise. If there is enough interest in the stack-based version, I can type up a short description and post it on the net. It supports sprite drawing at 16 angles, rotation, collision detection (a fairly stupid one, but fast and adequate for my purposes), drawing with BIS (bit set - OR), XOR, BIC (bit clear), and that's about all it does. It doesn't do any boundary checking, or clipping, for speed's sake, and so will merrily trash your innocent little 48's memory without the slightest notion of wrong-doing, if given improper arguments. (Don't tell me you weren't warned.) I realize calling it from user code is virtually useless (unless you have an object that will take considerably less space as a spritzel than it does as a GROB, which might be the case if you had, say, a world contour map :-)), but the enlightened reader of course recognizes the hacking potential. Minor lobotomization can work wonders. That's about it for now. -- Jan Brittenson bson@ai.mit.edu